Fish Mate P21 Pond Fish Feeder

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Keep your fishy friends fed and happy, even when you’re away from home with the programmable convenience of the Fish Mate P21 Pond Fish Feeder. The perfect size to feed fish populations in both small ponds and large aquariums, this automatic feeder has fully adjustable time and quantity settings, allowing food to be dispensed over a period of several hours for as many as 21 consecutive days. The Fish Mate P21 Fish Feeder not only makes your life easier by taking care of feedings for you, it is also great for the health and happiness of your fish, keeping them active throughout the day, while also preventing the dangers of overfeeding. It’s fully weatherproof and can be easily attached to your aquarium or pole-mounted at the edge of your pond.

Key Benefits
  • Perfect for automatically feeding fish populations in both small outdoor ponds and large in-home aquariums.
  • Low-cost and energy-efficient operation, thanks to being powered for over a year of use with one AA battery.
  • Feeding times and quantities are fully adjustable, allowing for multiple feedings for up to 21 consecutive days.
  • Feedings can be spaced out over several hours, keeping fish active and reducing the risk of them being overfed.
  • Safe, effective and continued use ensured with reliable and accurate quartz timer and battery condition indicator.

This feeder is not designed to be immersed in water. Such action will invalidate the guarantee.

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  • Item Number
  • Dimensions
    7.25 x 3.5 x 6.87 inches
  • Aquarium Type
  • Fish Type
    Koi & Pond Fish
  • Material


  1. Remove battery cover at rear by levering back edge with a coin, insert battery and switch on timing mechanism. Check battery operation by visible movement of gearwheel near "Battery Check". Replace battery cover.
  2. Depress front cover retainer on side of feeder and hinge back.
  3. Remove clear hopper lid by pulling on its edge and fill hopper body with the required food. Fill only between baffles. Do not overfill. Replace hopper lid ensuring it is fully clipped down onto hopper body. Set Feed Control. Shut front cover.
  4. Set required time delay to start of daily meal by rotating hopper anti-clockwise through bottom of feeder. If the hopper has been set for the meal to start in approximately 6 hours, food will then be dispensed gradually over a period of approximately 5 hours, as this is best for the fish. Place feeder in its operating position.

Feed Control The Fish Mate P21 feeder is particularly suited for use with floating food sticks, but is also suitable for use with all popular fish foods. However, care is required to use the correct baffle and "FEED CONTROL" setting to obtain the consistently correct meal size. The table in the User Guide will serve as a guide, but it is always best to test.

Please consult your fish food instructions or aquatic dealer to ascertain the exact amount of food for your fish. The correct baffle is easily fitted to the hopper body by sliding in/out of its recess in the hopper body. The maximum number of meals will normally range from about 40 for a small pond or aquarium to 8 for a large pond.

Testing your FISH MATE feeder before use

Your Fish Mate feeder is made from top quality materials, and is assembled to comply with rigorous quality standards. However, Fish Mate does recommend that before use you supervise its correct operation and feed setting over a period of at least 3 days.

To test the feeder, fill it with your normal fish food and leave to operate over a bowl or similar receptacle, so that the correct timing and amount of food dispensed can be observed. Note that manual rotation of the hopper does not give a true indication of the meal size, due to the very different speed of rotation.

If leaving your fish for long periods, we do recommend that someone periodically checks the feeder to ensure that all is well.

Mounting of Feeder

Ponds: It is recommended that the feeder is positioned about 25-30cm (10-12 inches) above the pond water level, and at least 20cm (8 inches) in from the edge of the pond. If the feeder is sited too low problems may be experienced with excessive moisture caused by rain splashing up under the feeder. If the feeder is too high or too near the edge of the pond, the food may be blown away from the water.

The feeder may be mounted using its quick release bracket or the hanging loop. It is normally recommended to use the bracket which may be attached, with the screw supplied, to a suitable length of wooden, metal or plastic post of approx. 30mm square (1 1/4 inches square). The post may be driven into the ground at any angle, but the end of the post should be cut vertically or horizontally before attachment of the bracket, in order to ensure that the feeder base is parallel to the water. "In Pond" location may be provided by setting a vertical post in concrete. (The concrete should be chemically neutralized before placing in the pond). Ensure there is sufficient concrete to provide a stable base for the feeder.

Aquariums: The feeder bracket may be bonded to the aquarium glass in the required position using silicone sealant. The bottom of the feeder should be at least 25mm (1") above the water surface, as excessive humidity may cause food to stick.


Your Fish Mate pond feeder should require no maintenance. However, care should be taken to prevent food getting into the mechanism behind the hopper. It is not recommended that the feeder is left outside during prolonged periods of wet weather.

Rating: 2.6 of 5 stars 8 Reviews 8 Reviews 2.6 out of 5 Stars

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62% Recommend

62% of reviewersrecommend this product

Rating: 2.6 of 5 stars 2.6 / 5

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  • 3 out of 5 stars

    This does not hold much food

    By John on Jun 18, 2021

    It's billed as being capable of dispensing "up to 22" feedings; this works only if each feeding is very small. I plan to return mine as it is would only cover 2-3 days' worth of summer feedings in my medium-sized koi pond. It's probably OK for other folks but not for my requirements

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  • 3 out of 5 stars

    Automatic fish feeder

    By CharliesDad on Sep 27, 2020

    I bought this to feed the fish in our pond when we go on vacations. I have it dispensing floating Koi sticks but I wish it held more food. Our trips are usually about 10 or 12 days and I'm not sure if the food will last that long. I am currently monitoring it to see how long it lasts. There is a setting for the amount of food inside and on a 1 to 40 I have it set at about 32 to dispense the proper amount of food. The product description says it will dispense up to 21 days but it would have to be set very low in order to meet that. Otherwise it seems to work well and it was reasonably priced at $42.50

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  • 4 out of 5 stars

    Great for vacation

    By TomC on Jun 11, 2020

    This is a simple once a day feeder. No fancy frills or difficult programming simply fill the drum set the time and once a day the drum completes a turn and drops food. It is basically a clock attached to the drum

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  • 3 out of 5 stars

    Life of a feeder.

    By Penny on Jun 22, 2019

    This has been a life saving item to have. We have a fishpond at our summer home and cannot be there all the time. Being able to set this fish feeder up keeps the fish happy until we can get back. I do wish the feeder wheel that turns could be lifted out to clean underneath. No matter how hard you try not to let food get under it, it happens. This kill the life of the feeder drastically.

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  • 5 out of 5 stars

    Love this and works great

    By Jame on Jan 20, 2019

    I was surprised to see the reviews saying it didn’t work. I just ordered my second one. The first one fell in the pond and it was hours before I noticed. There is a small start switch that is visible when you install the battery. Make sure it is in start position.

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  • 1 out of 5 stars

    not reliable

    By bubba on May 27, 2018

    So far I can not get this to work. Directions are not clear. does not give enough feeding options. I will work on it with my tester today...may be defective. very cheaply made.

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  • 1 out of 5 stars

    Pond Fish Feeder

    By MeMom on Jun 20, 2018

    Does not work!!! Very cheaply made. Could not get the feeder to dispense food.

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  • 1 out of 5 stars

    Fish feeder

    By Jayb on Jun 18, 2018

    I can't make it work!!! I have tried everything and it still doesn't work.

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